Question

Descompuneti in factori : b) x la a doua plus 5x plus 4
c) x la a doua plus 8x plus 7
Va rog ajutati ma ! :))) dau coroaba daca e nevoie ! :)))

Answer 1

b)x^2 + 5x + 4 = x^2 + 4x + x + 4
= x(x+4) + (x+4) = (x+4)(x+1)

c)x^2 + 8x + 7 = x^2 + 7x + x + 7
= x(x+7) + (x+7) = (x+7)(x+1)